Updating (flashing) the BIOS from your operating system

Note: Because Lenovo makes constant improvements to its Web sites, the Web page contents are subject to change without notice, including the contents referenced in the following procedure.

To update (flash) the BIOS from your operating system, do the following:

1.Go to http://www.lenovo.com/support.

2.Click Download Drivers & Software.

3.Click Use Quick Path.

4.Type the 4-digit machine type for your computer in the Quick Path field and then click Find My Product.

5.Click BIOS.

6.Locate the BIOS version that you want to download.

7.Click Click for files. All available files will be displayed.

8.Click the link for the readme file that contains the instructions for updating (flashing) the BIOS from your operating system.

9.Print these instructions. This is very important because these instructions will not be displayed on the screen after the download begins.

10.Follow the printed instructions to download, extract, and install the update.

Recovering from a POST/BIOS update failure

If the power to your computer is interrupted while the POST and BIOS is being updated, your computer might not restart correctly. If this happens, perform the following procedure to recover from the POST and BIOS update failure. This procedure is commonly called Boot-block Recovery.

1.Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer.

2.Remove the computer cover. See “Opening the computer cover” on page 32.

3.Locate the Clear CMOS /Recovery jumper on the system board. See “Locating parts on the system board” on page 12.

4.Remove any cables that impede access to the Clear CMOS /Recovery jumper.

5.Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 and pin 3).

6.Reconnect any cables that were disconnected and reinstall the PCI card if removed.

7.Reinstall the computer cover and reconnect the power cords for the computer and monitor to electrical outlets. See “Completing the parts replacement” on page 71.

8.Turn on the computer and then insert the POST and BIOS update (flash update) disc into the optical drive. Wait a few minutes. Then, the recovery session begins. The recovery session will take two to three minutes. During this time, a warning message will be displayed and no action is needed from you.

9.After the recovery session is completed, there will be no video, and your computer will automatically turn off.

10.Repeat step 1 through step 4.

11.Move the Clear CMOS /Recovery jumper back to the standard position (pin 1 and pin 2).

12.Reconnect any cables that were disconnected and reinstall the PCI card if removed.

13.Reinstall the computer cover and reconnect any cables that were disconnected.

14.Turn on the computer to restart the operating system.

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Lenovo 3690, 3695, 3688 Updating flashing the Bios from your operating system, Recovering from a POST/BIOS update failure
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3691, 3690, 3695, 3688, 3693 specifications

Lenovo, a prominent player in the global computing market, has introduced a series of innovative products, including models such as the Lenovo 3693, 3688, 3695, 3690, and 3691. These models showcase advanced features and technologies that cater to diverse user needs, from everyday tasks to more demanding applications.

The Lenovo 3693 is known for its robust performance and sleek design. It features a powerful processor that enables multitasking with ease. The high-resolution display provides vibrant visuals, making it an ideal choice for both work and entertainment. Additionally, it includes various connectivity options, including USB-C and Thunderbolt, facilitating high-speed data transfers and efficient connection to peripherals.

Model 3688 stands out for its energy efficiency and portability. With a lightweight chassis, it is designed for users on the go. This model incorporates Lenovo's Smart Power technology, which optimizes battery usage, extending the laptop's runtime. The 3688 also offers a comfortable keyboard and precision touchpad, making it a great option for users who require a reliable device for typing and navigation.

The Lenovo 3695 is tailored for gaming enthusiasts, equipped with a dedicated graphics card that delivers stunning visuals and smooth gameplay. It features advanced cooling technology to ensure optimal performance during extended gaming sessions. The customizable RGB keyboard adds a personalized touch, allowing gamers to enhance their experience with vibrant lighting effects.

Lenovo 3690 focuses on business professionals, providing enhanced security features such as a fingerprint reader and privacy shutter for the webcam. The robust build quality ensures durability, while the high-performance specs support resource-intensive applications. Moreover, Lenovo’s proprietary software solutions enhance productivity, allowing users to manage their tasks efficiently.

Finally, the Lenovo 3691 offers an excellent blend of performance and affordability, making it suitable for students and budget-conscious users. It comes with a reliable processor and ample storage space, perfect for handling everyday applications like web browsing, document creation, and media consumption.

In summary, Lenovo’s series of models 3693, 3688, 3695, 3690, and 3691 cater to a wide range of users, combining advanced features, modern design, and cutting-edge technologies. Whether for gaming, business, or casual use, these models ensure a seamless computing experience tailored to individual needs.
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